The special lessons of candidates for Architectural Schools include two types of drawing, freehand drawing and linear drawing. Freehand drawing is done with pencil or pencil and color, and only by hand without the help of drafting instruments. Compared to linear drawing, freehand drawing requires more "painting talent" or "hand". However, the depth in painting, both in entrance exams and in Architectural Schools, is within such frameworks that freehand drawing can be learned by individuals without a particular inclination for painting and artistic talent.

Linear drawing is always done with the help of drafting instruments, measurements, and calculations. Compared to freehand drawing, linear drawing does not require any painting inclination of the candidate. Linear drawing is a type of drawing that requires skill, delicacy, and precision in design, calm individuals without nervousness, and basic knowledge of leveling and projection geometry. In general, linear drawing is "taught", meaning it can be satisfactorily learned after appropriate practice and gaining experience.